Table 6.
Characteristics of patients who were never treated with activated vitamin D according to race/ethnicity
| Characteristic | White (n = 1543) | Hispanic (n = 234) | Black (n = 393) |
|---|---|---|---|
| Age (yr; mean ± SD) | 67.0 ± 14.9 | 62.9 ± 15.8a | 60.3 ± 16.4a |
| Diabetes as assigned cause of renal failure (%) | 39 | 65a | 37 |
| Systolic BP (mmHg; mean ± SD) | 139 ± 24 | 142 ± 20 | 145 ± 24a |
| Diastolic BP (mmHg; mean ± SD) | 70 ± 13 | 73 ± 11a | 76 ± 14 a,b |
| BMI (kg/m2; mean ± SD) | 26.6 ± 6.7 | 26.2 ± 6.3 | 26.7 ± 8.0 |
| Access at the initiation of hemodialysis (%) | |||
| arteriovenous fistula | 19 | 21 | 13 |
| venovenous catheter | 69 | 68 | 72 |
| Comorbid conditions (%) | |||
| coronary artery disease/myocardial infarction | 14 | 6a | 7a |
| congestive heart failure | 16 | 11a | 12a |
| peripheral vascular disease | 6 | 3a | 4a |
| stroke | 5 | 1a | 4b |
| hyperlipidemia | 12 | 7a | 5 a,b |
| malignancy | 5 | 1a | 3a |
| chronic obstructive pulmonary disease | 4 | 1a | 1a |
| Baseline laboratory test results | |||
| albumin (g/dl; mean ± SD) | 3.4 ± 0.5 | 3.3 ± 0.6a | 3.3 ± 0.6a |
| creatinine (mg/dl; mean ± SD) | 5.4 ± 2.5 | 5.8 ± 2.4a | 6.2 ± 3.0a |
| calcium (mg/dl; mean ± SD) | 8.7 ± 0.8 | 8.5 ± 0.9a | 8.6 ± 0.9 |
| phosphorus (mg/dl; mean ± SD) | 4.5 ± 1.6 | 4.5 ± 1.7 | 4.5 ± 1.7 |
| PTH (biointact, pg/ml; median [IQR])c | 91 (50 to 139) | 89 (59 to 139) | 102 (53 to 166) |
| alkaline phosphatase (U/L; mean ± SD) | 97 ± 71 | 94 ± 43 | 109 ± 107a |
| hemoglobin (g/L; mean ± SD) | 10.4 ± 1.3 | 10.4 ± 1.4 | 10.0 ± 1.4 a,b |
| urea reduction ratio (%; mean ± SD) | 68 ± 11 | 70 ± 11 | 68 ± 11 |
a
Significant differences (P < 0.05) versus white.
b
Significant differences (P < 0.05) between black and Hispanic.
c
Reference range on hemodialysis is 75 to 150 pg/ml.53